update jpa shared key

persistence-modules/hibernate-jpa/src/main/java/com/baeldung/hibernate/jpabootstrap/application/Application.java

@@ -8,7 +8,7 @@ public class Application {
     
     public static void main(String[] args) {
         EntityManager entityManager = getJpaEntityManager();
-        User user = entityManager.find(User.class, 1);
+        User user = entityManager.find(User.class, 1l);
         System.out.println(user);
         entityManager.getTransaction().begin();
         user.setName("John");

persistence-modules/hibernate-jpa/src/main/java/com/baeldung/hibernate/onetoone/sharedkeybased/Address.java

@@ -1,9 +1,9 @@
 package com.baeldung.hibernate.onetoone.sharedkeybased;
 
-
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.Id;
+import javax.persistence.JoinColumn;
 import javax.persistence.MapsId;
 import javax.persistence.OneToOne;
 import javax.persistence.Table;
@@ -13,7 +13,7 @@ import javax.persistence.Table;
 public class Address {
 
     @Id
-    @Column(name = "id")
+    @Column(name = "user_id")
     private Long id;
 
     @Column(name = "street")
@@ -24,6 +24,7 @@ public class Address {
 
     @OneToOne
     @MapsId
+    @JoinColumn(name = "user_id")
     private User user;
 
     public Long getId() {

persistence-modules/hibernate-jpa/src/main/java/com/baeldung/hibernate/onetoone/sharedkeybased/User.java

@@ -8,6 +8,7 @@ import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.OneToOne;
+import javax.persistence.PrimaryKeyJoinColumn;
 import javax.persistence.Table;
 
 @Entity
@@ -22,6 +23,7 @@ public class User {
     private String userName;
 
     @OneToOne(mappedBy = "user", cascade = CascadeType.ALL)
+    @PrimaryKeyJoinColumn
     private Address address;
 
     public Long getId() {